OmniRoute CLI — Internal Conventions

Status: normative. Source: _tasks/features-v3.8.0/cli/fase-0-preparacao/0.3-definir-convencoes.md. This file is the authoritative reference for every new or migrated CLI command. If reality diverges from this document, fix the code first; only edit this file after the discrepancy has been justified in a PR.

1. Subcommand style

Standard: git-style nested verbs.

omniroute keys add openai sk-xxx
omniroute combo switch fastest
omniroute memory search "react hooks"

Not allowed:

omniroute --add-key openai sk-xxx     # ❌ flag-as-verb
omniroute add-key openai sk-xxx       # ❌ hyphen at the top level

2. Flags

• Only --long and -s shorts (one-letter shorts reserved for very common flags: -h, -v, -o, -q, --no-open).
• Format: --api-key sk-xxx (space). = accepted for parity but doc uses space.
• Naming: kebab-case (--api-key, --non-interactive, --max-tokens).
• Booleans: --no-foo (negative) and --foo (positive). Default false unless documented.
• Multi-value: repeat the flag (--header X-A=1 --header X-B=2).

3. Output (--output)

Related flags:

• --quiet / -q — suppress headers/spinners (pipe-friendly).
• --no-color — force ANSI off (auto-detected if !stdout.isTTY).

Helper: emit(rows, opts) from bin/cli/output.mjs handles all four formats.

4. Exit codes

Helper: exitWith(code, message?) from bin/cli/exit.mjs (added under output.mjs if needed) — always uses these constants. Never raw process.exit(N) in command code.

5. HTTP errors + retry/backoff

All API calls go through apiFetch(path, opts) (bin/cli/api.mjs), which:

• Reads base URL from OMNIROUTE_BASE_URL env or ~/.omniroute/config.json (active profile).
• Injects Authorization: Bearer ${OMNIROUTE_API_KEY} when available.
• Injects x-omniroute-cli-token when applicable (see task 8.12).
• Applies a per-attempt timeout (--timeout 30000, default 30s).
• Maps status → exit code (401→4, 429→5, 5xx→1, etc.).
• Never exposes err.stack (CLAUDE.md hard rule #12).
• Applies exponential backoff with jitter on retryable statuses.

Retry defaults

export const RETRY_DEFAULTS = {
  maxAttempts: 3, // 1 initial + 2 retries
  baseMs: 500,
  maxMs: 8000, // jitter can slightly exceed
  jitter: true, // ±25%
  retryableStatuses: [408, 425, 429, 502, 503, 504],
  retryableErrorCodes: [
    "ECONNRESET",
    "ECONNREFUSED",
    "ETIMEDOUT",
    "ENOTFOUND",
    "EAI_AGAIN",
    "EPIPE",
  ],
};

Global flags wired

• --retry (default on) / --no-retry
• --retry-max <n> (default 3) — total attempts
• --timeout <ms> (default 30000) — per attempt
• --retry-on <csv> — extra retryable statuses (e.g. --retry-on 500)

Method semantics

• Mutations (POST/PUT/DELETE) retry only on idempotent-ish statuses (502/503/504/408/network), never 409/422. This avoids duplicate side-effects.
• GET retries all RETRY_DEFAULTS.retryableStatuses.
• SSE / streaming does not auto-retry (operator decides).
• Optional --idempotency-key <uuid> for extra-safe mutations.

Status → exit code map

6. Internationalization

• Every user-facing string goes through t("module.key", vars).
• Catalogs live in bin/cli/locales/{locale}.json (nested objects). 43 files ship out-of-the-box: en, pt-BR, and 41 additional locales. 11 locales are scaffold-only (empty {}); all keys fall back to en automatically.
• Detection order: --lang flag → OMNIROUTE_LANG env → LC_ALL → LC_MESSAGES → LANG → en.
• Locale persisted via config lang set <code> — saves OMNIROUTE_LANG to ~/.omniroute/.env.
• Missing keys return the key itself (no crash).
• PRs that add new strings must update en.json and pt-BR.json. Other locale files are best-effort; missing keys silently fall back to en.
• normalize() in i18n.mjs validates locale codes via /^[a-zA-Z0-9-]+$/ to prevent path traversal — never pass raw filesystem paths.
• Canonical locale list: config/i18n.json — source of truth used by both CLI and dashboard i18n pipelines.

Adding a new locale file

1. Add entry to config/i18n.json with code, english, native, flag.
2. Run node bin/cli/scripts/generate-locales.mjs — creates bin/cli/locales/{code}.json.
3. Fill in translations (or leave as {} for en-fallback scaffold).
4. The pre-commit hook check-cli-i18n will verify all t() keys exist in en.json.

7. Logs / output channels

• stdout — useful output (parseable when --output json|jsonl|csv).
• stderr — progress, warnings, errors, spinners.
• --verbose / -V — extra detail on stderr.
• --debug — stack traces, request bodies (dev-mode only; redacts secrets).

8. Server-first / DB-fallback

Single helper:

import { withRuntime } from "./runtime.mjs";

await withRuntime(async ({ kind, api, db }) => {
  if (kind === "http")
    return api("/api/combos", { retry: false, timeout: 5000, acceptNotOk: true });
  return db.combos.getCombos();
});

• kind: "http" when server is up (preferred). api is apiFetch bound to the current profile/base-URL.
• kind: "db" when server is offline. db exposes typed module exports:
  • db.combos → src/lib/db/combos.ts (getCombos, getComboByName, createCombo, deleteComboByName, setActiveCombo, …)
  • db.recovery → src/lib/db/recovery.ts (countEncryptedCredentials, resetEncryptedColumns)
• Mutations that require server must error with exit code 3 when the server is down, never silently fall back.
• Never write raw SQL in commands — always go through src/lib/db/ modules. The Semgrep rule at .semgrep/rules/cli-no-sqlite.yaml enforces this at commit time.

9. Audit of destructive actions

Commands that mutate state (delete, reset, --force) must:

• Ask for interactive confirmation (skipped with --yes).
• POST to /api/compliance/audit-log when the server is up.
• Support --dry-run (preview without effect).

10. Secrets

• Never log secrets. Mask as sk-***-xxx via maskSecret() from bin/cli/output.mjs.
• Never accept a secret via positional without warning. Prefer:
  • env (OMNIROUTE_*_API_KEY)
  • stdin (--api-key-stdin)
  • interactive askSecret() (echo off — already implemented in io.mjs)
• Secrets must not appear in --verbose / --debug output.

11. Testing baseline

• Every new command ships with at least one smoke test (happy path + one error path).
• Use tests/unit/cli-*.test.ts naming. Prefer node:test for CLI suites (no extra deps).
• Coverage target: ≥60% for bin/cli/commands/, ≥75% for bin/cli/ overall after Fase 8.

12. References

• CLAUDE.md hard rules — especially #11 (publicCreds), #12 (error sanitization), #13 (shell injection).
• docs/security/ERROR_SANITIZATION.md — the only acceptable error shapes.
• tests/unit/cli-tools-i18n.test.ts — current i18n infrastructure (pre-t()).
• Commander.js docs — Options & subcommand patterns.